Mitchell Newell

01 — About

Engineering Leader.
Builder. Mentor.

Engineering leader with experience scaling fintech platforms, leading teams of up to 12 engineers, and delivering high-impact payment infrastructure. Strong technical background in backend systems and large-scale production monoliths with event-driven components.

Combined with proven leadership in cross-team initiatives, product delivery, and platform reliability. Experienced driving major banking integrations, launching new payment capabilities, and improving core system performance at scale.

Engineers Led

$300M+

Processing Volume

200K+

Payments Processed

Years Experience

Download Resume

02 — Skills

Technical Arsenal

Technologies, tools, and disciplines I work with.

Engineering Leadership

Team Mentoring Technical Roadmaps Cross-team Programs Architecture Decisions Agile Delivery

Backend & Platform

Distributed Systems Event-driven Arch Payment Infrastructure API Development RabbitMQ Kafka

Cloud & Infrastructure

AWS Docker Kubernetes ArgoCD Jenkins CI/CD PostgreSQL ProxySQL

Testing

Jest Mocha Unit Testing Integration Testing Postman Automation

Frameworks & Tools

Node.js React Vue.js AngularJS TypeScript Power BI

Security & Systems

2FA / MFA DDoS Mitigation ELK Stack Microservice Architecture Monolithic Architecture

Language Proficiency

JavaScript / TypeScript90%

Python85%

SQL75%

PHP75%

HTML / CSS75%

Java60%

C / C++60%

03 — Experience

Career Timeline

Previous technical and industry experience.

Trolley

Software Engineering Manager, Core Team

June 2025 – Present

Team Leadership

Manage a team of 6–11 engineers, providing mentorship, technical guidance, and delivery oversight.
Own and manage execution of multiple concurrent initiatives impacting core product systems.
Partner with product, payments, and infrastructure leadership to drive roadmap and technical strategy.

Platform & Product Impact

Manage and oversee development and rollout of multiple new payout methods.
Managed and oversaw improvements and optimizations to the Tax product platform.
Helped manage development and migration of event-driven services to RabbitMQ to improve reliability, throughput, and maintainability.
Helped manage development and optimization of large payment batch processing, increasing supported batch sizes from ~10K payments to ~80K payments.

Major Program — Cross River Bank Integration

Technical lead for Cross River Bank integration (Jan 2025 → Sep 2025), coordinating up to 12 engineers.

200K+ payments processed $300M+ payment volume $250M volume in last 3 months

Trolley

Software Developer, Core Team

Aug 2022 – May 2025

Designed and launched the Sync product for invoice ingestion and reconciliation.
Led development on Cross River Bank and Citi Bank integrations.
Developed EU Tax product (e-file generation, e-delivery, government submission).
Participated in support engineering rotation and production incident response.
Expanded automated testing coverage using Mocha.

TypeScriptNode.js ReactPostgreSQL AWSMocha

Reach

Software Developer, Core Team

Feb 2022 – Aug 2022

Led development and integration of Power BI embedded analytics into the merchant admin platform.
Led migration of TaaS (Tax as a Service) product to Kafka.
Built Postman automation testing workflows.

C++JavaScript Vue.jsPostgreSQL Kafka

Helcim

Infrastructure Developer (Core → DevOps)

Apr 2021 – Feb 2022

Built and documented Kubernetes infrastructure for the organization.
Implemented ArgoCD and ProxySQL to improve deployment automation and database efficiency.
Maintained and improved CI/CD pipelines and ELK stack.
Led containerization of internal services including the Data Vault service.

CBash KubernetesDocker ArgoCDELK Stack

Helcim

Junior Developer — System Security

Jun 2020 – Apr 2021

Maintained central security services and TLS infrastructure.
Implemented QR-code-based 2FA into Helcim's web application.
Supported mitigation of security events including DDoS incidents.

PHPJavaScript Vue.jsMySQL

Arterys Inc.

Software Developer Intern

May 2018 – Jul 2019

Developed and extended existing API to support ML model integrations and identity systems.
Built integration and unit testing coverage across platform services.
Contributed to MFA and third-party identity provider infrastructure.

TypeScriptNode.js AngularJSVue.js MongoDB

04 — Education

Coursework

Technical courses and electives from the University of Calgary.

ENGG 504Entrepreneurial Capstone Design Project II

ENGG 503Entrepreneurial Capstone Design Project I

SENG 533Software Performance Evaluation

ENEL 503Computer Vision

ENCM 509Fundamentals of Biometric Systems Design

CPSC 526Network Systems Security

CPSC 525Principles of Computer Security

SENG 511Software Process and Project Management

ENEL 525Machine Learning for Engineers

CPSC 471Database Management Systems

SENG 401Software Architecture

SENG 471Software Requirements Engineering

SENG 438Software Testing, Reliability, and Quality

CPSC 441Computer Networks

CPSC 457Principles of Operating Systems

ENCM 511Embedded System Interfacing

ENSF 480Principles of Software Design

ENSF 409Principles of Software Development

CPSC 319Data Structures, Algorithms, and Their Applications

05 — Portfolio

Selected Projects

Academic and personal projects. More on GitHub.

Animagic Animation Studio

C/C++ · Capstone

Animagic Website

Web Development

Helens House of Heragon

Web Development

Discord Bot

JavaScript · Discord API

KeyClue Database Project

PHP · CPSC 471

Android Calculator

Java · Android

Car Purchasing Assistant

Web · SENG 471

Flight Management App

Java · ENSF 409

Bug Logging Tool

Java · ENSF 480

06 — Contact

Let's Connect

Open to new opportunities and conversations. Reach out through any channel.

linkedin.com/in/mitchell-newell github.com/Mitchell-F-Newell gitlab.com/MNewell mitchell.newell.dev@gmail.com 403-612-4000

Based in Calgary, Alberta. Engineering leader with a focus on fintech payment infrastructure and high-performance teams.

Whether you have a role to discuss, a technical challenge to solve, or just want to connect — I'm happy to chat.